7.00 kg3.00 kg7.00 kgWhat is the force by tension between the 3 kg bucket and the 7 kg bucket on the right?A 56.5 NВ.12.1 NC.1.73 ND. 7.00 N5. What should be used to compare the forces produced by two motors?A the masses of the motorsB. the rates of electrical energy the motors useC. the acceleration of equal masses acted on by the motorsthe length of time the motors can run when attached to identica fresh batteriesQ +D.Page 5 / 21-

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College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter4: Dynamics: Force And Newton's Laws Of Motion

Section: Chapter Questions

Problem 23PE: A 5.00105 -kg rocket is accelerating straight up. Its engines produce 1.250107 N of thrust, and air...

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A 400-N body starts up the incline of 30o with the horizontal (fk = 0.2) with a velocity of 3m/s. a. How long must a 500-N horizontal force act on the body to increase its velocity to 8m/s? b. How far will the body travel while the force is acting?
Two small forces, F1=2.40i6.10tj N and F2=8.50i9.70j N , are exerted on a rogue asteroid by a pair of space tractors. (a) Find the net force. (b) What are the magnitude and direction of the net force? (c) If the mass of the asteroid is 125 kg, what acceleration does it experience (in vector form)? (d) What are the magnitude and direction of the acceleration?
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A 5.00105 -kg rocket is accelerating straight up. Its engines produce 1.250107 N of thrust, and air resistance is 4.50106 N. What is the rocket's acceleration? Explicitly show how you follow the steps in the Problem-Solving Strategy for Newton's laws of motion.
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1. There’s a battery powered skateboard hidden in the mop bucket. Assume the mass of the entire system is {43} kg, and gravity is 10 N/kg. (Maybe start with part d?) If the board can accelerate at 1.5 m/s2, how much net force is needed? If the skateboard motor can put out 300 N of force, how much friction (neglect air resistance combined) does the system have? What is the kinetic frictional coefficient for mop bucket on roadway? Draw a Force Body Diagram for the man/bucket, assuming that the man, the bucket, the leaf blower, and the umbrella are all a single object and on level ground. Label and calculate all forces. Explain why this wouldn’t work without the hidden motor in the mop bucket. Explain in terms of the forces between man, umbrella, and leaf blower. Identify two sets of force pairs in this system.
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What is the force by tension between the 3 kg bucket and the 7 kg bucket on the right? A 56.5 N